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<p>C++ 标准的下一主要修订版
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<h2><span class="mw-headline" id=".E6.96.B0.E7.9A.84.E8.AF.AD.E8.A8.80.E7.89.B9.E6.80.A7"> 新的语言特性 </span></h2>
<ul><li> <a href="feature_test.html" title="cpp/feature test">特性测试宏</a>
</li><li> <a href="language/operator_comparison.html#.E4.B8.89.E8.B7.AF.E6.AF.94.E8.BE.83" title="cpp/language/operator comparison">三路比较</a>运算符 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy1">&lt;=&gt;</span></span></span> 和 <a href="language/default_comparisons.html" title="cpp/language/default comparisons"><tt><span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">==</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">=</span> <span class="kw1">default</span></span></span></tt></a>
</li><li> <a href="language/aggregate_initialization.html#.E6.8C.87.E6.B4.BE.E5.88.9D.E5.A7.8B.E5.8C.96.E5.99.A8" title="cpp/language/aggregate initialization">指派初始化器</a>
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</li><li> <code>[[<a href="language/attributes/likely.html" title="cpp/language/attributes/likely">unlikely</a>]]</code>
</li><li> <a href="language/lambda.html#Lambda_.E6.8D.95.E8.8E.B7" title="cpp/language/lambda">lambda 初始化捕获</a>中的包展开
</li><li> 移除了在多种上下文语境中，使用 <code>typename</code> 关键字以消除类型歧义的要求
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</li><li> 更为宽松的 constexpr 要求
</li><li> 规定有符号整数以补码实现
</li><li> 使用圆括号的<a href="language/aggregate_initialization.html" title="cpp/language/aggregate initialization">聚合初始化</a>
</li><li> <a href="language/coroutines.html" title="cpp/language/coroutines">协程</a>
</li><li> <a href="language/modules.html" title="cpp/language/modules">模块</a>
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</li><li> DR ：<a href="language/new.html" title="cpp/language/new">数组 new</a> 可推导数组长度
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<h2><span class="mw-headline" id=".E6.96.B0.E7.9A.84.E5.BA.93.E7.89.B9.E6.80.A7"> 新的库特性 </span></h2>
<h3><span class="mw-headline" id=".E6.96.B0.E7.9A.84.E5.A4.B4.E6.96.87.E4.BB.B6"> 新的头文件 </span></h3>
<ul><li> <a href="header/concepts.html" title="cpp/header/concepts"><tt>&lt;concepts&gt;</tt></a>
</li><li> <a href="header/coroutine.html" title="cpp/header/coroutine"><tt>&lt;coroutine&gt;</tt></a>
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</li><li> <a href="header/format.html" title="cpp/header/format"><tt>&lt;format&gt;</tt></a>
</li><li> <a href="header/span.html" title="cpp/header/span"><tt>&lt;span&gt;</tt></a>
</li><li> <a href="header/ranges.html" title="cpp/header/ranges"><tt>&lt;ranges&gt;</tt></a>
</li><li> <a href="header/bit.html" title="cpp/header/bit"><tt>&lt;bit&gt;</tt></a>
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<p><a href="thread.html" title="cpp/thread">线程支持库</a>中：
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<ul><li> <a href="header/stop_token.html" title="cpp/header/stop token"><tt>&lt;stop_token&gt;</tt></a>
</li><li> <a href="header/semaphore.html" title="cpp/header/semaphore"><tt>&lt;semaphore&gt;</tt></a>
</li><li> <a href="header/latch.html" title="cpp/header/latch"><tt>&lt;latch&gt;</tt></a>
</li><li> <a href="header/barrier.html" title="cpp/header/barrier"><tt>&lt;barrier&gt;</tt></a>
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<h3><span class="mw-headline" id=".E5.BA.93.E7.89.B9.E6.80.A7"> 库特性 </span></h3>
<ul><li> <a href="utility/feature_test.html" title="cpp/utility/feature test">库特性测试宏</a>
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</li><li> <a href="container/span.html" title="cpp/container/span"><tt>std::span</tt></a>
</li><li> <a href="types/endian.html" title="cpp/types/endian"><tt>std::endian</tt></a>
</li><li> 针对数组的 <span class="t-lc"><a href="memory/shared_ptr/make_shared.html" title="cpp/memory/shared ptr/make shared">std::make_shared</a></span> 支持
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</li><li> 浮点类型和 shared_ptr 的原子对象
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</li><li> <a href="io/basic_osyncstream.html" title="cpp/io/basic osyncstream"><tt>std::osyncstream</tt></a>
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</li><li> <code>&lt;algorithm&gt;</code> 、 <code>&lt;utility&gt;</code> 、 <code>&lt;complex&gt;</code> 中设施的 constexpr 化
</li><li> <a href="string/basic_string/starts_with.html" title="cpp/string/basic string/starts with"><tt>std::string::starts_with</tt></a> / <a href="string/basic_string/ends_with.html" title="cpp/string/basic string/ends with"><tt>ends_with</tt></a> 与 <a href="string/basic_string_view/starts_with.html" title="cpp/string/basic string view/starts with"><tt>std::string_view::starts_with</tt></a> / <a href="string/basic_string_view/ends_with.html" title="cpp/string/basic string view/ends with"><tt>ends_with</tt></a>
</li><li> <a href="memory/assume_aligned.html" title="cpp/memory/assume aligned"><tt>assume_aligned</tt></a>
</li><li> <a href="utility/functional/bind_front.html" title="cpp/utility/functional/bind front"><tt>bind_front</tt></a>
</li><li> <a href="string/multibyte/c8rtomb.html" title="cpp/string/multibyte/c8rtomb"><tt>c8rtomb</tt></a>/<a href="string/multibyte/mbrtoc8.html" title="cpp/string/multibyte/mbrtoc8"><tt>mbrtoc8</tt></a>
</li><li> <a href="memory/make_obj_using_allocator.html" title="cpp/memory/make obj using allocator"><tt>make_obj_using_allocator</tt></a> 等
</li><li> <a href="memory/shared_ptr/make_shared.html" title="cpp/memory/shared ptr/make shared"><tt>std::make_shared_for_overwrite</tt></a>/<a href="memory/unique_ptr/make_unique.html" title="cpp/memory/unique ptr/make unique"><tt>std::make_unique_for_overwrite</tt></a>
</li><li> 无序关联容器中的异质查找
</li><li> <span class="t-lc">std::polymoprhic_allocator</span> 的额外成员函数和 <span class="t-lc">std::byte</span> 作为其默认模板实参
</li><li> <span class="t-lc">std::execution::unseq</span>
</li><li> <span class="t-lc">std::midpoint</span> 和 <span class="t-lc">std::lerp</span>
</li><li> <span class="t-lc">std::ssize</span>
</li><li> <span class="t-lc">std::is_bounded_array</span>
</li><li> <a href="ranges.html" title="cpp/ranges">范围</a>
</li><li> 统一容器擦除 （<code>std::erase</code>/<code>std::erase_if</code>）
</li><li> <a href="numeric/constants.html" title="cpp/numeric/constants">数学常数</a>
</li></ul>
<h2><span class="mw-headline" id=".E7.BC.BA.E9.99.B7.E6.8A.A5.E5.91.8A"> 缺陷报告 </span></h2>
<div style="margin-left:0px">
<table class="mw-collapsible mw-collapsed" style="background: transparent; text-align: left; border: 1px solid silver; margin: 0.2em auto auto; width:100%; clear: both; padding: 1px;">

<tr>
<th style="background: #F0F2F5; font-size:87%; padding:0.2em 0.3em; text-align:center;"> <span style="font-size:115%">C++20 中修正的缺陷报告（核心 158 个，库 345 个）</span>
</th></tr>
<tr>
<td style="border: solid 1px silver; padding: 8px; background: white;">
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<h2><span class="mw-headline" id=".E7.BC.96.E8.AF.91.E5.99.A8.E6.94.AF.E6.8C.81.E6.83.85.E5.86.B5"> 编译器支持情况 </span></h2>
<p>主条目： <a href="compiler_support.html#C.2B.2B20_.E5.8A.9F.E8.83.BD.E7.89.B9.E6.80.A7" title="cpp/compiler support">C++ 编译器支持</a>
</p>
<h3><span class="mw-headline" id="C.2B.2B20_.E6.A0.B8.E5.BF.83.E8.AF.AD.E8.A8.80.E5.8A.9F.E8.83.BD.E7.89.B9.E6.80.A7">C++20 核心语言功能特性</span></h3>
<table class="wikitable tbody-scroll mw-collapsible" style="font-size:0.8em; width:100%">

<tr style="height:15em">
<th style="vertical-align:bottom;"> C++20 功能特性<br> 
</th>
<th style="vertical-align:bottom;"> 提案<br> 
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>GCC</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Clang</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>MSVC</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Apple Clang</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>EDG eccp</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Intel C++</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>IBM XLC++</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Sun/Oracle C++</div></div>
</th>
<th scope="col" style="width: 40pt;"> <div class="t-vertical"><div>Embarcadero C++ Builder</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Cray</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Nvidia HPC C++ <br>（前 Portland Group/PGI）</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Nvidia nvcc</div></div>
</th>
<th>
</th></tr>
<tr>
<td> 允许 lambda 捕获 <code>[=, this]</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0409R2">P0409R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>__VA_OPT__</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0306R4">P0306R4</a><br><a rel="nofollow" class="external text" href="https://wg21.link/P1042R1">P1042R1</a>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe"><span title="无 #__VA_OPT__ 支持">8 (部分)*</span><br><span title="无位置标记记号处理更改">10
</span></td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/aggregate_initialization.html#.E6.8C.87.E6.B4.BE.E5.88.9D.E5.A7.8B.E5.8C.96.E5.99.A8" title="cpp/language/aggregate initialization">指派初始化器</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0329R4">P0329R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="构成 P0329 基础的非标准扩展，缺少花括号初始化器">4.7 (部分)*</span><br>8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="P0329 的完全 C99 兼容超集，缺少花括号初始化器">3.0 (部分)*</span><br>10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe"><span title="P0329 的完全 C99 兼容超集，缺少花括号初始化器">(部分)*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/lambda.html#.E8.AF.AD.E6.B3.95" title="cpp/language/lambda">泛型 lambda 的模板形参列表</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0428R2">P0428R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.0 beta (11M336w), 11.0 (11A420a), 11.1 (11A1027), 11.2 (11B52), 11.2.1 (11B500), 11.3 (11C29), 11.3.1 (11C504)">11.0.0*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/bitfield.html#Cpp20_.E4.BD.8D.E5.9F.9F.E7.9A.84.E9.BB.98.E8.AE.A4.E6.88.90.E5.91.98.E5.88.9D.E5.A7.8B.E5.8C.96.E5.99.A8" title="cpp/language/bit field">位域的默认成员初始化器</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0683R1">P0683R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 类模板实参推导中的 intializer_list 构造函数
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0702R1">P0702R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2017 15.7">19.14*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> const&amp; 限定的成员指针
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0704R1">P0704R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2017 15.7">19.14*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/constraints.html" title="cpp/language/constraints">概念</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0734R0">P0734R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6<br>(仅 TS)<br>10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe"><span title="VS 2019 16.3">19.23*</span> <span title="无 requires 表达式支持">(部分)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/lambda.html#.E4.B8.8D.E6.B1.82.E5.80.BC.E8.AF.AD.E5.A2.83.E4.B8.AD.E7.9A.84_lambda" title="cpp/language/lambda">不求值语境中的 lambda</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0315R4">P0315R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/operator_comparison.html#.E4.B8.89.E8.B7.AF.E6.AF.94.E8.BE.83" title="cpp/language/operator comparison">三路比较运算符</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0515R3">P0515R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8 (部分)<br>10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.0">19.20*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR ：简化隐式 lambda 捕获
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0588R1">P0588R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.4">19.24*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/range-for.html#.E8.AF.AD.E6.B3.95" title="cpp/language/range-for">基于范围的 for 的初始化语句</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0614R1">P0614R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.0 beta (11M336w), 11.0 (11A420a), 11.1 (11A1027), 11.2 (11B52), 11.2.1 (11B500), 11.3 (11C29), 11.3.1 (11C504)">11.0.0*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 可默认构造与可赋值的无状态 <a href="language/lambda.html" title="cpp/language/lambda">lambda</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0624R2">P0624R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 预置复制构造函数与 const 的不匹配
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0641R2">P0641R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2015">19.0 (2015)*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 特化上的访问检查
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0692R1">P0692R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">8 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span> (部分)
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> ADL 与不可见的函数模板
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0846R0">P0846R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR：指定 <code>constexpr</code> 函数定义何时为<a href="language/constant_expression.html#.E5.B8.B8.E9.87.8F.E6.B1.82.E5.80.BC.E6.89.80.E9.9C.80.E8.A6.81.E7.9A.84.E5.87.BD.E6.95.B0.E4.B8.8E.E5.8F.98.E9.87.8F" title="cpp/language/constant expression">常量求值所需要</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0859R0">P0859R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="大多数">5.2 (部分)*<br>9</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe"><span title="实现足以支持 C++20 标准库。完整实现要求打破二进制兼容的更改。"><span title="VS 2019 16.7">19.27*</span> (部分)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 属性 <code>[[<a href="language/attributes/likely.html" title="cpp/language/attributes/likely">likely</a>]]</code> 与 <code>[[<a href="language/attributes/likely.html" title="cpp/language/attributes/likely">unlikely</a>]]</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0479R5">P0479R5</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 使 <a href="keywords/typename.html" title="cpp/keywords/typename" class="mw-redirect"><tt>typename</tt></a> 更可选
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0634R3">P0634R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> Lambda 初始化捕获中的包展开
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0780R2">P0780R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 属性 <code>[[<a href="language/attributes/no_unique_address.html" title="cpp/language/attributes/no unique address">no_unique_address</a>]]</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0840R2">P0840R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.9">19.28 (16.9)*</span><span title="已实现意味着剖析通过，这被认为是 ABI 不兼容，因为编译器先前无错误地接受它">*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 条件性平凡的特殊成员函数
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0848R3">P0848R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR：放松<a href="language/structured_binding.html" title="cpp/language/structured binding">结构化绑定</a>定制点查找规则
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0961R1">P0961R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR：放松<a href="language/range-for.html" title="cpp/language/range-for">范围 <code>for</code> 循环</a>定制点查找规则
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0962R1">P0962R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR ：允许到可访问成员的结构化绑定
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0969R0">P0969R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="memory/new/operator_delete.html" title="cpp/memory/new/operator delete">销毁的 <code>operator delete</code></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0722R3">P0722R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/template_parameters.html#.E9.9D.9E.E7.B1.BB.E5.9E.8B.E6.A8.A1.E6.9D.BF.E5.BD.A2.E5.8F.82" title="cpp/language/template parameters">非类型模板形参</a>非类型模板形参中的类类型
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0732R2">P0732R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">12 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="无对于用户定义字面量的提议更改"><span title="VS 2019 16.6">19.26*</span>(部分)*</span><br><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.2
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 弃用经由 <code>[=]</code> 隐式捕获 <code>this</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0806R2">P0806R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">7
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/explicit.html" title="cpp/language/explicit"><tt>explicit(bool)</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0892R2">P0892R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.4">19.24*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 集成<a href="feature_test.html" title="cpp/feature test">功能特性测试宏</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0941R2">P0941R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">3.4
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2017 15.8">19.15*</span> (部分)<br><span title="VS 2019 16.0">19.20*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 禁止有用户声明构造函数的聚合体
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1008R1">P1008R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.0">19.20*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> <a href="language/virtual.html" title="cpp/language/virtual">虚函数</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1064R0">P1064R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 比较的一致性改进
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1120R0">P1120R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">8 (部分)<br>10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span> (部分)
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/types.html#char8_t" title="cpp/language/types"><code>char8_t</code></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0482R6">P0482R6</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">7
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="types/is_constant_evaluated.html" title="cpp/types/is constant evaluated"><tt>std::is_constant_evaluated()</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0595R2">P0595R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">19.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> 函数中的 <code>try</code>-<code>catch</code> 块
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1002R1">P1002R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/consteval.html" title="cpp/language/consteval">立即函数</a>（<code>consteval</code>）
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1073R3">P1073R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="无 consteval 虚函数支持">10 (部分)*</span> <br>11
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">11 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span><span title="无折叠常量的立即调用">*</span><br>(部分)<br><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/namespace.html" title="cpp/language/namespace">嵌套内联命名空间</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1094R2">P1094R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/template_parameters.html#.E7.B1.BB.E5.9E.8B.E6.A8.A1.E6.9D.BF.E5.AE.9E.E5.8F.82" title="cpp/language/template parameters">有约束</a><a href="language/auto.html" title="cpp/language/auto">声明</a>的另一种手段
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1141R2">P1141R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span> (部分)<br><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 有符号整数为补码
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1236R1">P1236R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="有符号整数从来都是补码">是</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> <code>dynamic_cast</code> 及多态 <code>typeid</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1327R1">P1327R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 在 <code>constexpr</code> 内更改联合体的活跃成员
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1330R0">P1330R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2017 15.0">19.10*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/coroutines.html" title="cpp/language/coroutines">协程</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0912R5">P0912R5</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">8 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2015">19.0 (2015)*</span> (部分)<br><span title="VS 2017 15.0">19.10*</span> (仅 TS)<br><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span> (部分)
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 括号形式的<a href="language/aggregate_initialization.html" title="cpp/language/aggregate initialization">聚合体初始化</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0960R3">P0960R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR： <a href="language/new.html" title="cpp/language/new"><code>new</code> 表达式</a>中的数组大小推导
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1009R2">P1009R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/modules.html" title="cpp/language/modules">模块</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1103R3">P1103R3</a>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">11 (部分)
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">8 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2015">19.0 (2015)*</span> (部分)<br><span title="VS 2017 15.0">19.10*</span> (仅 TS)<br><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span> (部分)
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 更强的 Unicode 要求
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1041R4">P1041R4</a><br><a rel="nofollow" class="external text" href="https://wg21.link/P1139R2">P1139R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2015">19.0 (2015)*</span> (P1041R4)<br><span title="VS 2019 16.6">19.26*</span> (P1139R2)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>&lt;=&gt; != ==</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1185R2">P1185R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR ：拥有不同异常说明的显式默认化函数
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1286R2">P1286R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 结构化绑定的 lambda 捕获与存储类说明符
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1091R3">P1091R3</a><br><a rel="nofollow" class="external text" href="https://wg21.link/P1381R1">P1381R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">8 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2017 15.3">19.11*</span>(P1381R1)<br><span title="VS 2019 16.4">19.24*</span>(P1091R3)
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span> (部分)
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">5.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.7
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 容许转换到未知边界数组
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0388R4">P0388R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> 容器操作
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0784R7">P0784R7</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 弃用 <code>volatile</code> 的某些用法
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1152R4">P1152R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/constinit.html" title="cpp/language/constinit"><tt>constinit</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1143R2">P1143R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/operator_other.html#.E5.86.85.E5.BB.BA.E7.9A.84.E9.80.97.E5.8F.B7.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator other">弃用下标中的逗号运算符</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1161R3">P1161R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 带消息的 <code>[[<a href="language/attributes/nodiscard.html" title="cpp/language/attributes/nodiscard">nodiscard</a>]]</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1301R4">P1301R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> 函数中的平凡默认初始化
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1331R2">P1331R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> 函数中的不求值 <code>asm</code> 声明
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1668R1">P1668R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/enum.html#using_enum_.E5.A3.B0.E6.98.8E" title="cpp/language/enum"><tt>using enum</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1099R5">P1099R5</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">13
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.4">19.24*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.3
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 对指定的比较类别合成<a href="language/operator_comparison.html#.E4.B8.89.E8.B7.AF.E6.AF.94.E8.BE.83" title="cpp/language/operator comparison">三路比较</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1186R3">P1186R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.4">19.24*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR：构造函数的 <code>[[<a href="language/attributes/nodiscard.html" title="cpp/language/attributes/nodiscard">nodiscard</a>]]</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1771R1">P1771R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.4">19.24*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 别名模板的<a href="language/class_template_argument_deduction.html" title="cpp/language/class template argument deduction">类模板实参推导</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1814R0">P1814R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 聚合类的类模板实参推导
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1816R0">P1816R0</a><br><a rel="nofollow" class="external text" href="https://wg21.link/P2082R1">P2082R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10(P1816R0)<br>11(P2082R1)
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR ：更多局部对象与右值引用的<a href="language/return.html" title="cpp/language/return">隐式移动</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1825R0">P1825R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="仅 C++20 模式">11*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">13
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.4">19.24*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.0
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 允许默认化按值比较
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1946R0">P1946R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 移除 <code>std::weak_equality</code> 与 <code>std::strong_equality</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1959R0">P1959R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">20.11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 非类型模板形参的不一致
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1907R1">P1907R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10 (部分)<br>11
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">12 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.2
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR：伪析构函数终结对象生存期
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0593R6">P0593R6</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR ：应认为从 <code>T*</code> 到 <code>bool</code> 的转换为窄化
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1957R2">P1957R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="仅 C++20 模式">10*</span> <br><span title="所有模式">11*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6.1
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr style="height:15em">
<th style="vertical-align:bottom;"> C++20 功能特性<br> 
</th>
<th style="vertical-align:bottom;"> 提案<br> 
</th>
<th> <div class="t-vertical"><div>GCC</div></div>
</th>
<th> <div class="t-vertical"><div>Clang</div></div>
</th>
<th> <div class="t-vertical"><div>MSVC</div></div>
</th>
<th> <div class="t-vertical"><div>Apple Clang</div></div>
</th>
<th> <div class="t-vertical"><div>EDG eccp</div></div>
</th>
<th> <div class="t-vertical"><div>Intel C++</div></div>
</th>
<th> <div class="t-vertical"><div>IBM XLC++</div></div>
</th>
<th> <div class="t-vertical"><div>Sun/Oracle C++</div></div>
</th>
<th> <div class="t-vertical"><div>Embarcadero C++ Builder</div></div>
</th>
<th> <div class="t-vertical"><div>Cray</div></div>
</th>
<th> <div class="t-vertical"><div>Nvidia HPC C++</div></div>
</th>
<th> <div class="t-vertical"><div>Nvidia nvcc</div></div>
</th></tr></table>
<h3><span class="mw-headline" id="C.2B.2B20_.E5.BA.93.E5.8A.9F.E8.83.BD.E7.89.B9.E6.80.A7">C++20 库功能特性</span></h3>
<table class="wikitable tbody-scroll mw-collapsible" style="font-size:0.8em; width:100%">

<tr style="height:15em">
<th style="vertical-align:bottom;"> C++20 功能特性<br> 
</th>
<th style="vertical-align:bottom;"> 提案<br> 
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>GCC libstdc++</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Clang libc++</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>MSVC STL</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Apple Clang</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Sun/Oracle C++<br>标准库</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Embarcadero C++ Builder<br>标准库</div></div>
</th>
<th style="width: 40pt;"> <div class="t-vertical"><div>Cray C++<br>标准库</div></div>
</th>
<th>
</th></tr>
<tr>
<td> <a href="types/endian.html" title="cpp/types/endian"><tt>std::endian</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0463R1">P0463R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">7
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 扩展 <span class="t-lc"><a href="memory/shared_ptr/make_shared.html" title="cpp/memory/shared ptr/make shared">std::make_shared()</a></span> 以支持数组
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0674R1">P0674R1</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="atomic/atomic.html#.E5.AF.B9.E6.B5.AE.E7.82.B9.E7.B1.BB.E5.9E.8B.E7.9A.84.E7.89.B9.E5.8C.96" title="cpp/atomic/atomic">浮点原子类型</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0020R6">P0020R6</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="io/basic_syncbuf.html" title="cpp/io/basic syncbuf">同步缓冲</a>（<a href="io/basic_osyncstream.html" title="cpp/io/basic osyncstream"><tt>std::basic_osyncstream</tt></a>）
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0053R7">P0053R7</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="header/algorithm.html" title="cpp/header/algorithm"><tt>&lt;algorithm&gt;</tt></a> 与 <a href="header/utility.html" title="cpp/header/utility"><tt>&lt;utility&gt;</tt></a> 的 <code>constexpr</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0202R3">P0202R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8 (部分)<br>12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span> (部分)
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="header/complex.html" title="cpp/header/complex"><tt>&lt;complex&gt;</tt></a> 的更多 <code>constexpr</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0415R1">P0415R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">7 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span> (部分)
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 使 <span class="t-lc"><a href="atomic/memory_order.html" title="cpp/atomic/memory order">std::memory_order</a></span> 为有作用域枚举
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0439R0">P0439R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="string/basic_string.html" title="cpp/string/basic string">字符串</a><a href="string/basic_string/starts_with.html" title="cpp/string/basic string/starts with">前缀</a>与<a href="string/basic_string/ends_with.html" title="cpp/string/basic string/ends with">后缀</a>检查： <a href="string/basic_string/starts_with.html" title="cpp/string/basic string/starts with"><tt>string</tt></a><a href="string/basic_string_view/starts_with.html" title="cpp/string/basic string view/starts with"><tt>(_view)</tt></a><a href="string/basic_string/starts_with.html" title="cpp/string/basic string/starts with"><tt>
::starts_with</tt></a>/<a href="string/basic_string_view/ends_with.html" title="cpp/string/basic string view/ends with"><tt>ends_with</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0457R2">P0457R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> =<a href="language/operator_comparison.html#.E4.B8.89.E8.B7.AF.E6.AF.94.E8.BE.83" title="cpp/language/operator comparison"><code>operator&lt;=&gt;</code></a> 的库支持 <a href="header/compare.html" title="cpp/header/compare"><tt>&lt;compare&gt;</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0768R1">P0768R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">7 (部分)<br>12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.0">19.20*</span> (部分)<br><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span> (部分)
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="types/remove_cvref.html" title="cpp/types/remove cvref"><tt>std::remove_cvref</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0550R2">P0550R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.0">19.20*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/attributes/nodiscard.html#.E6.A0.87.E5.87.86.E5.BA.93" title="cpp/language/attributes/nodiscard">标准库</a>中的 <code>[[<a href="language/attributes/nodiscard.html" title="cpp/language/attributes/nodiscard">nodiscard</a>]]</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0600R1">P0600R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">7 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2017 15.6">19.13*</span> (部分)<br><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span> (部分)
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 于<a href="numeric.html" title="cpp/numeric">数值算法</a>使用 <code>std::move</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0616R0">P0616R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.3">19.23*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 转换指针为裸指针的<a href="memory/to_address.html" title="cpp/memory/to address">工具</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0653R2">P0653R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 原子 <a href="memory/shared_ptr/atomic2.html" title="cpp/memory/shared ptr/atomic2"><tt>std::shared_ptr</tt></a> 与 <a href="memory/weak_ptr/atomic2.html" title="cpp/memory/weak ptr/atomic2"><tt>std::weak_ptr</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0718R2">P0718R2</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="container/span.html" title="cpp/container/span"><tt>std::span</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0122R7">P0122R7</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">7
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="chrono.html#.E6.97.A5.E5.8E.86" title="cpp/chrono">日历</a>与<a href="chrono.html#.E6.97.B6.E5.8C.BA" title="cpp/chrono">时区</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0355R7">P0355R7</a>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">11 (部分)
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">7 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span> (部分)
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="header/version.html" title="cpp/header/version"><tt>&lt;version&gt;</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0754R2">P0754R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">7
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10 beta (10L176w), 10.0 (10A255), 10.1 (10B61)">10.0.0*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 比较无序容器
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0809R0">P0809R0</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2010">16.0*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="named_req/ConstexprIterator.html" title="cpp/named req/ConstexprIterator"><span style="font-style:italic">常量表达式迭代器</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(ConstexprIterator)</span> </a>要求
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0858R0">P0858R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2017 15.3">19.11*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <span class="t-lc"><a href="string/basic_string/reserve.html" title="cpp/string/basic string/reserve">std::basic_string::reserve()</a></span> 不应收缩
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0966R1">P0966R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 带填充位的原子比较交换
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0528R3">P0528R3</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="atomic/atomic_ref.html" title="cpp/atomic/atomic ref"><tt>std::atomic_ref</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0019R8">P0019R8</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 关联容器的 <code>contains()</code> 成员函数，如 <a href="container/map/contains.html" title="cpp/container/map/contains"><tt>std::map::contains()</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0458R2">P0458R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="缺少有序容器的异质查找">9 (部分)*</span><br>13
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR ：<a href="memory/scoped_allocator_adaptor/construct.html" title="cpp/memory/scoped allocator adaptor/construct">逐片构造</a>的受保证复制消除
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0475R1">P0475R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="numeric/bit_cast.html" title="cpp/numeric/bit cast"><tt>std::bit_cast()</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0476R2">P0476R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="header/bit.html" title="cpp/header/bit">整数的 2 的幂的运算</a>：
<p><a href="numeric/bit_ceil.html" title="cpp/numeric/bit ceil"><tt>std::bit_ceil()</tt></a>、
<a href="numeric/bit_floor.html" title="cpp/numeric/bit floor"><tt>std::bit_floor()</tt></a>、
<a href="numeric/bit_width.html" title="cpp/numeric/bit width"><tt>std::bit_width()</tt></a>、
<a href="numeric/has_single_bit.html" title="cpp/numeric/has single bit"><tt>std::has_single_bit()</tt></a>
</p>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0556R3">P0556R3</a><br><a rel="nofollow" class="external text" href="https://wg21.link/P1956R1">P1956R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9 (P0556R3)<br>10 (P1956R1)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9 (P0556R3)<br>12 (P1956R1)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span> (P0556R3)<span title="用 Clang">*</span><br><span title="VS 2019 16.7">19.27*</span> (P1956R1)<span title="用 Clang">*</span><br><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 改进擦除式算法的返回值
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0646R1">P0646R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="memory/new/destroying_delete_t.html" title="cpp/memory/new/destroying delete t"><tt>std::destroying_delete</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0722R3">P0722R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="types/is_convertible.html" title="cpp/types/is convertible"><tt>std::is_nothrow_convertible</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0758R1">P0758R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.3">19.23*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 添加 <a href="algorithm/shift.html" title="cpp/algorithm/shift"><tt>std::shift_left/right</tt></a> 到 <a href="header/algorithm.html" title="cpp/header/algorithm"><tt>&lt;algorithm&gt;</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0769R2">P0769R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <span class="t-lc"><a href="algorithm/swap.html" title="cpp/algorithm/swap">std::swap()</a></span> 与 <code>swap</code> 相关函数的 constexpr
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0879R0">P0879R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">12 (部分)<br>13
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="types/type_identity.html" title="cpp/types/type identity"><tt>std::type_identity</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0887R1">P0887R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="concepts.html" title="cpp/concepts">概念库</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0898R3">P0898R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">13
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.3">19.23*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <span class="t-lc"><a href="container/array.html" title="cpp/container/array">std::array</a></span> 的 <code>constexpr</code> <a href="container/array/operator_cmp.html" title="cpp/container/array/operator cmp">比较运算符</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1023R0">P1023R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="utility/functional/unwrap_reference.html" title="cpp/utility/functional/unwrap reference"><code>std::unwrap_ref_decay</code> 与 <code>std::unwrap_reference</code></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0318R1">P0318R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.1">19.21*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="utility/functional/bind_front.html" title="cpp/utility/functional/bind front"><tt>std::bind_front()</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0356R5">P0356R5</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">13
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 不完整类型的 <span class="t-lc"><a href="utility/functional/reference_wrapper.html" title="cpp/utility/functional/reference wrapper">std::reference_wrapper</a></span>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0357R3">P0357R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 修正 <a href="io/basic_istream/operator_gtgt2.html" title="cpp/io/basic istream/operator gtgt2"><tt>operator&gt;&gt;(basic_istream&amp;, CharT*)</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0487R1">P0487R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.3">19.23*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="language/types.html#char8_t" title="cpp/language/types"><code>char8_t</code></a> 的库支持
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0482R6">P0482R6</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">8 <span title="缺少 cuchar 与 memory_resource 的相关部分">(部分)*</span><br>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 实现<a href="memory/make_obj_using_allocator.html" title="cpp/memory/make obj using allocator">使用分配器</a><a href="memory/uninitialized_construct_using_allocator.html" title="cpp/memory/uninitialized construct using allocator">构造</a>的<a href="memory/uses_allocator_construction_args.html" title="cpp/memory/uses allocator construction args">工具函数</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0591R4">P0591R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR： <span class="t-lc"><a href="utility/variant.html" title="cpp/utility/variant">std::variant</a></span> 与 <span class="t-lc"><a href="utility/optional.html" title="cpp/utility/optional">std::optional</a></span> 应传播复制/移动平凡性
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0602R4">P0602R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8.3
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2017 15.3">19.11*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 理智的 <span class="t-lc"><a href="utility/variant.html" title="cpp/utility/variant">std::variant</a></span> 转换构造函数
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0608R3">P0608R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <span class="t-lc"><a href="utility/functional/function.html" title="cpp/utility/functional/function">std::function</a></span> 的移动构造函数应为 <code>noexcept</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0771R1">P0771R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">7.2
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">6
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.2">19.22*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">是
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="iterator.html" title="cpp/iterator">一个</a><a href="ranges.html" title="cpp/ranges">范围</a><a href="algorithm/ranges.html" title="cpp/algorithm/ranges">提案</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0896R4">P0896R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">13 (部分)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="container.html#.E6.97.A0.E5.BA.8F.E5.85.B3.E8.81.94.E5.AE.B9.E5.99.A8" title="cpp/container">无序容器</a>的异质查找
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0919R3">P0919R3</a> <a rel="nofollow" class="external text" href="https://wg21.link/P1690R1">P1690R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.3">19.23*</span> (P0919R3)<br><span title="VS 2019 16.5">19.25*</span> (P1690R1)
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="header/chrono.html" title="cpp/header/chrono"><tt>&lt;chrono&gt;</tt></a> <code>zero()</code>、 <code>min()</code> 及 <code>max()</code> 应为 <code>noexcept</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0972R0">P0972R0</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2017 15.7">19.14*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <span class="t-lc"><a href="memory/pointer_traits.html" title="cpp/memory/pointer traits">std::pointer_traits</a></span> 中的 <code>constexpr</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1006R1">P1006R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="memory/assume_aligned.html" title="cpp/memory/assume aligned"><tt>std::assume_aligned()</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1007R3">P1007R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="到 9.4 与 10.3 为止非 constexpr">9*</span><br>11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 使用默认初始化的智能指针创建（如 <a href="memory/unique_ptr/make_unique.html" title="cpp/memory/unique ptr/make unique"><tt>make_unique_for_overwrite</tt></a>）
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1020R1">P1020R1</a><br><a rel="nofollow" class="external text" href="https://wg21.link/P1973R1">P1973R1</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 杂项 <code>constexpr</code> 小部分
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1032R1">P1032R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">13
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 移除 <code>std::span</code> 的比较运算符
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1085R2">P1085R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 使 <a href="string/basic_string/operator%2B.html" title="cpp/string/basic string/operator+"><tt>operator+(basic_string)</tt></a> 的有状态分配器传播更加一致
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1165R1">P1165R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 一致容器擦除，如 <a href="container/vector/erase2.html" title="cpp/container/vector/erase2"><tt>std::erase(std::vector)</tt></a> 或 <a href="container/map/erase_if.html" title="cpp/container/map/erase if"><tt>std::erase_if(std::map)</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1209R0">P1209R0</a> <a rel="nofollow" class="external text" href="https://wg21.link/P1115R3">P1115R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9 (P1209R0)<br>10 (P1115R3)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8 (P1209R0) <br>11 (P1115R3)
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span> (P1209R0)<br><span title="VS 2019 16.7">19.27*</span> (P1115R3)
</td>
<td style="background: #ffff90; color: black; vertical-align: middle; text-align: center;" class="table-maybe">
<p><span title="Xcode 10.2 (10E125), 10.2.1 (10E1001), 10.3 (10G8)">10.0.1*</span> (P1209R0)
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 标准库头文件单元
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1502R1">P1502R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="memory/polymorphic_allocator.html" title="cpp/memory/polymorphic allocator"><tt>polymorphic_allocator&lt;&gt;</tt></a> 作为词汇类型
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0339R6">P0339R6</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="algorithm/execution_policy_tag.html" title="cpp/algorithm/execution policy tag"><tt>std::execution::unseq</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1001R2">P1001R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="numeric/lerp.html" title="cpp/numeric/lerp"><tt>std::lerp()</tt></a> 与 <a href="numeric/midpoint.html" title="cpp/numeric/midpoint"><tt>std::midpoint()</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0811R3">P0811R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.3">19.23*</span> (部分)<br><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>std::span</code> 的实用性增强
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1024R3">P1024R3</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> DR：使 <a href="filesystem/create_directory.html" title="cpp/filesystem/create directory"><tt>create_directory()</tt></a> 自发
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1164R1">P1164R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">8.3
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.0">19.20*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="iterator/size.html" title="cpp/iterator/size"><tt>std::ssize()</tt></a> 与 <code>std::span</code> 的无符号长度
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1227R2">P1227R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="types/is_bounded_array.html" title="cpp/types/is bounded array">有界</a>及<a href="types/is_unbounded_array.html" title="cpp/types/is unbounded array">无界</a>数组特征
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1357R1">P1357R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="container/array/to_array.html" title="cpp/container/array/to array"><tt>std::to_array()</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0325R4">P0325R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <span class="t-lc"><a href="io/basic_stringbuf.html" title="cpp/io/basic stringbuf">std::basic_stringbuf</a></span> 缓冲的有效访问
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0408R7">P0408R7</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="types/is_layout_compatible.html" title="cpp/types/is layout compatible">布局</a><a href="types/is_corresponding_member.html" title="cpp/types/is corresponding member">兼容性</a>与<a href="types/is_pointer_interconvertible_base_of.html" title="cpp/types/is pointer interconvertible base of">指针</a><a href="types/is_pointer_interconvertible_with_class.html" title="cpp/types/is pointer interconvertible with class">可互转换性</a>特征
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0466R5">P0466R5</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span><span title="最初仅 MSVC ；在 LLVM-48860 解决后将对 Clang 支持。">*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="numeric.html" title="cpp/numeric">位操作</a>： <code>std::</code>
<p><a href="numeric/rotl.html" title="cpp/numeric/rotl"><tt>rotl()</tt></a>、
<a href="numeric/rotr.html" title="cpp/numeric/rotr"><tt>rotr()</tt></a>、
<a href="numeric/countl_zero.html" title="cpp/numeric/countl zero"><tt>countl_zero()</tt></a>、
<a href="numeric/countl_one.html" title="cpp/numeric/countl one"><tt>countl_one()</tt></a>、
<a href="numeric/countr_zero.html" title="cpp/numeric/countr zero"><tt>countr_zero()</tt></a>、
<a href="numeric/countr_one.html" title="cpp/numeric/countr one"><tt>countr_one()</tt></a>、
<a href="numeric/popcount.html" title="cpp/numeric/popcount"><tt>popcount()</tt></a>
</p>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0553R4">P0553R4</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">9
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span><span title="用 Clang">*</span><br><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">
<p><span title="Xcode 11.4 (11E146), 11.4.1 (11E503a)">11.0.3*</span>
</p>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="numeric/constants.html" title="cpp/numeric/constants">数学常数</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0631R8">P0631R8</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.5">19.25*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="utility/format.html" title="cpp/utility/format">文本格式化</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0645R10">P0645R10</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="thread/stop_token.html" title="cpp/thread/stop token"><tt>std::stop_token</tt></a> 与 <a href="thread/jthread.html" title="cpp/thread/jthread"><tt>std::jthread</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0660R10">P0660R10</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.9">19.28 (16.9)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> <span class="t-lc"><a href="memory/allocator.html" title="cpp/memory/allocator">std::allocator</a></span> 及相关工具
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0784R7">P0784R7</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> <span class="t-lc"><a href="string/basic_string.html" title="cpp/string/basic string">std::string</a></span>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0980R1">P0980R1</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> <span class="t-lc"><a href="container/vector.html" title="cpp/container/vector">std::vector</a></span>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1004R2">P1004R2</a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 输入<a href="ranges.html" title="cpp/ranges">范围适配器</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1035R7">P1035R7</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <code>constexpr</code> <span class="t-lc"><a href="utility/functional/invoke.html" title="cpp/utility/functional/invoke">std::invoke()</a></span> 及相关工具
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1065R2">P1065R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 原子等待与提醒、 <a href="thread/counting_semaphore.html" title="cpp/thread/counting semaphore"><tt>std::counting_semaphore</tt></a> 、 <a href="thread/latch.html" title="cpp/thread/latch"><tt>std::latch</tt></a> 及 <a href="thread/barrier.html" title="cpp/thread/barrier"><tt>std::barrier</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1135R6">P1135R6</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.8">19.28 (16.8)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="utility/source_location.html" title="cpp/utility/source location"><tt>std::source_location</tt></a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1208R6">P1208R6</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">11
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> 添加 <code>&lt;=&gt;</code> 到标准库
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1614R2">P1614R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.10">19.29 (16.10)*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <span class="t-lc"><a href="atomic/atomic.html" title="cpp/atomic/atomic">std::atomic</a></span> 与 <span class="t-lc"><a href="atomic/atomic_flag.html" title="cpp/atomic/atomic flag">std::atomic_flag</a></span> 的 <code>constexpr</code> 默认构造函数
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0883R2">P0883R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">13
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="numeric.html#.E6.95.B0.E5.80.BC.E8.BF.90.E7.AE.97" title="cpp/numeric">数值算法</a>的 <code>constexpr</code>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P1645R1">P1645R1</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">12
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.6">19.26*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr>
<td> <a href="utility/intcmp.html" title="cpp/utility/intcmp">安全整数比较</a>
</td>
<td> <a rel="nofollow" class="external text" href="https://wg21.link/P0586R2">P0586R2</a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">10
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes">13
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><span title="VS 2019 16.7">19.27*</span>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no">
</td></tr>
<tr style="height:15em">
<th style="vertical-align:bottom;"> C++20 功能特性<br> 
</th>
<th style="vertical-align:bottom;"> 提案<br> 
</th>
<th> <div class="t-vertical"><div>GCC libstdc++</div></div>
</th>
<th> <div class="t-vertical"><div>Clang libc++</div></div>
</th>
<th> <div class="t-vertical"><div>MSVC STL</div></div>
</th>
<th> <div class="t-vertical"><div>Apple Clang</div></div>
</th>
<th> <div class="t-vertical"><div>Sun/Oracle C++<br>标准库</div></div>
</th>
<th> <div class="t-vertical"><div>Embarcadero C++ Builder<br>标准库</div></div>
</th>
<th> <div class="t-vertical"><div>Cray C++<br>标准库</div></div>
</th></tr></table>
<p><i>*</i> - 在版本号上停留可以查看注记
</p>
<ul><li> <a rel="nofollow" class="external text" href="https://github.com/makelinux/examples/blob/master/cpp/20.cpp">C++20 可行样例</a>
</li></ul>
</div>

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